Find the circusiferien of the circly
1 r-5cm 2 d-6m 3 r-3.5m 4 7m 5 15m
Answer:
To find the circumference of a circle, we can use the formula:
C = 2πr
where C represents the circumference and r represents the radius of the circle.
Let's calculate the circumferences for the given circles:
1. Circle with radius r = 5 cm:
C = 2π(5 cm) = 10π cm
2. Circle with diameter d = 6 m:
The radius can be found by dividing the diameter by 2: r = 6 m / 2 = 3 m
C = 2π(3 m) = 6π m
3. Circle with radius r = 3.5 m:
C = 2π(3.5 m) = 7π m
4. Circle with radius r = 7 m:
C = 2π(7 m) = 14π m
5. Circle with radius r = 15 m:
C = 2π(15 m) = 30π m
So, the circumferences of the given circles are:
1. 10π cm
2. 6π m
3. 7π m
4. 14π m
5. 30π m
Note: π (pi) is a mathematical constant approximately equal to 3.14159.